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Latest modification of the deployable space reflector structure with V-folding bars

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Abstract

In this paper, a new modification of the mechanical load-bearing ring structure is considered. It is shown that due to the appropriate changes made to the ring, its structure possesses obvious advantages as compared with the previously proposed variant. The projecting tips of the struts to which the central flexible shaping system is attached are replaced by paired levers with torsion springs of new design, which guarantee the smooth deployment of the ring and keep the cables in permanently tensioned condition. In the new modification, the central flexible shaping system is directly attached to the upper and lower hoops of the ring, thereby preventing the bending of struts when the reflector is completely deployed. The new multi-stage deployment scheme of the structure considered in the paper operates without synchronization mechanisms—the upper and lower kinematic chains get deployed not simultaneously as in the previous ring variant but in alternating order. The validity of design computations is confirmed by the FEM mathematical models for which deformations of structural elements, displacement of nodes, and eigenfrequency values are determined. The optimization of structural elements makes it possible to design the mechanical characteristics and strength margin of the ring with a minimal number of elements and minimal cross-sectional values, which simplifies the ring structure on the whole, and reduces its weight.

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References

  1. Tserodze, Sh., Medzmariashvili, E., Tsignadze, N., Tusishvili, O., Santiago-Prowald, J., Baier, H., Scialino, L., Mangenot, C.: The structure of conical reflector with v-fold bar’s deployable ring. In: Proceedings of Workshop on large deployable antennas, ESTEC, Noordwijk, 2–3 October 2012

  2. Tserodze, Sh., Prowald, J.S., Gogilashvili, V., Chkhikvadze, K., Tsignadze, N., Chapodze, A., Nikoladze, M.: New design of transformable mechanical cone system with v-folded bars. In: Proceedings of the 2nd International Scientific Conference on Advanced Lightweight Structures and Reflector Antennas, Tbilisi, Georgia, 1–3 October 2014

  3. Qi, Xiaozhi, Li, Bing, Deng, Zongquan, Liu, Rongqiang, Guo, Hongwei: design and optimization of large deployable mechanism constructed by myard linkages. CEAS Space J. 5, 147–155 (2013)

    Article  Google Scholar 

  4. Tserodze, Sh, Prowald, J.S., Gogilashvili, V., Chkhikvadze, K.: Transformable reflector structure with V-folding bars. CEAS Space J 8(4), 291–301 (2016)

    Article  Google Scholar 

  5. Tserodze, Sh., Prowald, J.S., Scialino, L., Medzmariashvili, E., Tsignadze, N., Nikoladze, M.: Mechanical supporting ring for space reflector and method of deployment of the same, Patent GE 6801, H01Q 15/20, Georgian Technical University, http://www.sakpatenti.gov.ge/en/publications/?subject=OFFICIALBULLETINSOFINDUSTRIALPROPERTY bulletin #1, pp. 6–7, 2018 (in Georgian)

  6. Medzmariashvili, E., Bedukadze, G., Datashvili, L., Gogava, Z., Gomelauri, G., Sutidze, D., Salaridze, R., Tserodze Sh.: Engineering constructions of concentrators, power transmitting and receiving antennas and solar batteries large squares for space electric station. In: Fourth European Space Power Conference, Poiltiers, France, 4–8 Sept 1995

  7. Medzmariashvili, E., Tserodze, Sh., Gogilashvili, V., Sarchimelia, A., Chkhikvadze, K., Siradze, N., Bedukadze, G.: Some peculiarities of the creation of deployable ring-shaped space antenna reflectors using flexible bars and ropes. In: Proceedings of the European Conference on spacecraft structures, materials and mechanical testing 2005 (ESA SP-581) provided by the NASA astrophysics data system, Noordwijk, 10–12 May, 1–11 2005

  8. Medzmariashvili, E., Tserodze, Sh. Tsignadze, N. Sanikidze, M., Datashvili, L., Sarchimelia, A., Chkhikvadze, K., Siradze, N., Bedukadze, G.: A new design variant of the large deployable space reflector. In: 10th Biennial International Conference on engineering, construction, and operations in challenging environments and second NASA/ARO/ASCE workshop on granular materials in lunar and martian exploration, League Houston 2006

  9. Medzmariashvili, E., Tsebarze, Sh, Gogilashvili, V., Sarchimelia, A., Chkhikvadze, K., Siradze, N., Tsignadze, N., Sanikidze, M., Nikoladze, M., Datunashvili, G.: New variant of the deployable ring-shaped space antenna reflector. Space Commun. J. 22(1), 41–48 (2009)

    Article  Google Scholar 

  10. Van ‘t Klooster, C.G.M., Medzmariashvili, E., Tsebarze, S., Datashvili, L., Tsignadze, N.: Large deployable reflector configuration for spacebased applications in telecommuni-cations, science and remote sensing. In: Proceedings of International Scientific Conference advanced lightweight structures and reflector antennas, Tbilisi, Georgia, 14–16 October 2009

  11. Tserodze, S., Medzmariashvili, E., Tsignadze, N., Tusishvili, O., Santiago-Prowald, J., Baier, H., Scialino, L., Mangenot, C.: The structure of conical reflector with v-fold bar’s deployable ring. In: Proceedings of InterNational Scientific Conference Workshop on large deployable antennas, The Netherlands, 2–3 October 2012

  12. Tsebarze, S., Medzmariashvili, E., Tusishvili, O., Tsignadze, N., Santiago-Prowald, J., van ‘tKlooster, C.G.M., Medzmariashvili, N.: Mechanical supporting ring structure. CEAS Space J 5(3–4), 185–194 (2013)

    Google Scholar 

  13. Tserodze, Sh., Tsignadze, N., Medzmariashvili, E., Datashvili, L., Santiago Prowald, J.B.: Mechanical supporting ring structure. Patent of USA, No US9153860(B2) 2015

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Authors and Affiliations

  1. Department of Transformable Space Structures, Georgian Technical University, 68 Kostava Str. 0175, Tbilisi, Georgia

    Sh. Tserodze, K. Chkhikvadze, M. Nikoladze & M. Muchaidze

  2. European Space Agency, ESTEC, Structures Section, Keplerlaan 1, 2200 AG, Noordwijk, The Netherlands

    J. Santiao Prowald

Authors
  1. Sh. Tserodze
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  2. J. Santiao Prowald
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  3. K. Chkhikvadze
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  4. M. Nikoladze
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  5. M. Muchaidze
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Correspondence to Sh. Tserodze.

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Tserodze, S., Prowald, J.S., Chkhikvadze, K. et al. Latest modification of the deployable space reflector structure with V-folding bars. CEAS Space J 12, 163–169 (2020). https://doi.org/10.1007/s12567-019-00281-9

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  • DOI: https://doi.org/10.1007/s12567-019-00281-9

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